AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger: Amazon.com: Industrial & Scientific
Amazon.com: HiLetgo 4 Channel 24V Relay Module with OPTO-Isolated Support High and Low Level Trigger for PLC Automation Equipment Control : Industrial & Scientific
Gebildet JD2912 Car Relay with Harness 24V 40A 4 Pin SPST Harness Sockets with Color-Labeled Wires for Automotive Truck Van Motorcycle Boat (Pack of 2)
HiLetgo 2pcs DC 24V 1 Channel Relay Module with OPTO Isolation Support High or Low Level Trigger
Amazon.com: Relay Module (12vdc or 24vdc, 5amp/115vac/28v dc dpdt Contact) : Industrial & Scientific
Schneider Electric 24VDC, 8-Pin Square Base General Purpose General Purpose Relay; AC Contact Rating: 12A @ 277V: Amazon.com: Industrial & Scientific
Amazon.com: 12V DC 120 Amp Split Charge Relay Switch - 4 Terminal Relays for Truck Boat Marine : Automotive
Amazon.com: Delay Timer Relay Self-Locking Delay On Off Time Switch Loop Module Super 555 Timer DC 5V/12V/24V(DC12V) : Tools & Home Improvement
Amazon.com: HiLetgo 2pcs DC 24V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 24V : Industrial & Scientific
Electronics-Salon DIN Rail Mount 8 SPDT Power Relay Interface Module. (Operating Voltage: DC 12V): Amazon.com: Industrial & Scientific